Tumor ablation treatment is divided into several types, including thermal ablation, cryoablation, and chemical ablation. Thermal ablation includes microwave ablation and radiofrequency ablation, cryoablation is argon helium knife treatment, and chemical ablation is anhydrous alcohol injection treatment which is more commonly used in the past. The main purpose of ablation is to cause protein denaturation of tumor lesions, such as microwave or radiofrequency to heat the tumor to 60℃-80℃ or even 100℃, which will cause coagulative necrosis of the tissues and achieve the purpose of local inactivation of tumor. Cryoablation is to cause necrosis of tumor tissues through ultra-low temperature. Chemical ablation is to make the tumor tissues mostly or completely necrotic through chemical methods, including drugs. Therefore, tumor ablation therapy can achieve the purpose of local complete inactivation of tumor tissues.